package com.example.demo.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

@WebFilter(urlPatterns = "/*")
public class ProjectFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("初始化操作");
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        System.out.println("过滤逻辑处理");
        // 对请求进行处理
        filterChain.doFilter(servletRequest, servletResponse);
        System.out.println("对响应进行处理");
    }

    @Override
    public void destroy() {
        System.out.println("销毁操作");
    }
}
